Safety-envelop.



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UNITED sTAInsATENT OFFICE.

WILLIAM H. HEILIGER, 0F BRAZIL, INDIANA- sammy-alumno?.

spedacmon of Letters Patent.

Appuuann una nach 1s, nos. sum m. nome remue oet. is,

Brazil, rin the county of Clay 'and Stateof Indiana, haveinvented certain new andV use;

ful Im rovements in Safety-Envelope, of

whiclilt e following is a specification.

This Inventlon provides lan envelop of novel construction possible.

lFor a full understandinof the invention andthe merits thereof an also to acquire a knowledge of thedetails of construction and the means for effecting the result, reference is to be had to the following description and'V tutes the pocket into which the letter, irrisacco nyIn drawin Y Wm g 8S .'20 departing from the spirit or essential-"fea-" the invention may be adaptedalto different forms'and conditions'b changes 1n thel 'structure'and minor detai swithout v'tures thereof, still the preferred'embo'diment -js shown in the accompanying drawings, in which: l Figure'l'i's Vadetaill view of the blank` sealing the envelop, 5 is a rear viewr of" from which the envelop is formed." F' '2 1s a pers 've-view ofthe blank doled upon itse f and ha Ing 'the letter pocket fol s ective view showing an end portion o jthe' g. 4 is a perspectiveview; middle flaps'have been b ank refolded. Fi 'of the blank after the folded and theend sections bent uplprior to the envelopwhen sealed. Fig. ,6 is a trans- Y verse section on the line 4:1i-:v of Fig. 5v on a l Vaxr scale rresponding and like 'parts vare referred to 1n the followm description and indicated in all the views o A thedrawings. byl the same- I'eference characters. Y v.

The blank.. from which the .envelop is formed is a single lpiece of paper having the blank comprisesthe front 1, back 2, a.nd` se`c" outline substantial as shown in Figfl, and comprising a plura ity of sections and (isps which are adapted to fold `upon the dotted lines in the 4manner herein indicated. The

tions 3, 4 and 5 having dimensions equal to the dimensionsfof.the frontand back seas-'1 -to `.foldsbetween."the same. and have their L" edges about nshf-1laps '-7 are provided at which when sealed', can, not.4 be opened without renderingdetection the end flaps fornij-.- ded.- FigSisalv r11-1 outer edge provided at opposite ends of the section 8. Tabs 9 are dprovided at the outer edge of the front 1 an are spaced apart. A tongue 10 is also provided at the outer edge ofthe front v1 and occupies the space formed between'ie tabs9.l "l" "i, i

For convenience.. of description in forming the blankinto an' envelop, the several views illustrated have been selected and the may: be set forth as follows: The blank --Is' doubled` upon itself to cause the sections 3, 4 and to'overlie the sections 2 and 1 vand the parts 9 and 10, as indicnlted'in Fig. 2, after which the fiaps 6- are folded upon the flaps 7 and the latter folded upon the section 4, -The space between the flaps 'and 7 consti sive orthe likeis inserted. vThe fin-ps 6 are pasted to the section 4. The section 4, with v4the letter. pocket attached, is nowfolded back upon' the section 3,'as indicated in F ig. 3, thereby bringing the ocket between the 'sections 3 and 4, after w ich the liaps 8 are I folded overthe section 4 and pasted thereto.

prevents `separation of the sections 3" and'ff'atntheir ends. The-end section 5 is Vfc'ilded'foi'rer the flaps `8l and the' section A1 4'folded upon the section 5, Vthereby confining 1':- the. parts of theen'velop betweenithe' Vflrllt section 1,5 and the back section 2. .The

e l'lOis supplied with paste upon both sidesand-.isfinserted into the space formed llletfween thesectionfandfthe `fia s 7and pastedto each.' vThe tabs 9- are fo ded over theback 2 and pastedftheretmthereb completing theseahn ofthe envel'o w ich is' addressed upon t e outer side o the front section 1 and'isthen-.adnpted to' be mailed or l transmitted to lits destination` vin any ,4 accustomed way, i, l It will be understood 'from the f in connection with the. accompanying-f! wing, 'that the blank, when folded and-seiired inthe manner stated,` provides an envelopor package. whichlmay no't beopened-{or tam-- gered with without the same being made nown because ofthe v peculiarfolds' and. the' `manner of 'sealing the tabs, flaps and ton e. v Having thus' described the invention, w at' is claimed as new is:

-V '.lhef herein described safety `envlops formed from a-single blank` o f slieetmaterial embodying 'a ,'conneotedjseries of'` sections 1', 2, 3,54 a nd 5 'ap-tongueV '1 0 andtnbsf. at the-119-r o f-tl-iejsection 1, aps 7 at of the flaps 7, and other aps 8 at op osite and the tongue 10 being inserted in the space ends of the section 3, the flaps '6 being Ended between the section 3 andy the flaps' 7 and Vupon the Hep 7 the latter in turn folded p'asted to each.

.Kupon and pasted'to the section 4 providintr n In testimon whereof I fnix my signa-ture 'f6 letter receiving pocket, said section 4foldmg in presence 0 two witnesses.

- upon .the sectlon 3 and having the flaps 8 I -folded thereover and pasted thereto, the sec- V WILLIAM. H' HEHIGER [L 8'] g tion 5 being folded upon .the flaps 8 and thev vlVitnesses:

M section 1 folded thereon and having the tabs Flammen J. HEILIGim, Jr.,

I 169 pasted to the 'outer side of the section 2, HENRY M. CRSLEY. 

